JP2919003B2 - Two-piece terminal block connector - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a two-piece terminal block connector which is used for, for example, a sequencer input / output terminal block for factory automation (FA) and incorporates a fuse.

[Prior Art] Conventionally, as shown in FIG. 6, a plurality of electrode plate pairs are provided on an insulator 21 in the direction of the paper surface of the drawing as a terminal block connector having a fuse.
22 is fixed, and connection wires are attached and detached by electric wire connection screws 23. In each electrode plate pair 22, a horizontal cylindrical fuse 24 is detachable from the upper surface of the insulator 21. .

[Problem to be Solved by the Invention] The terminal block connector shown in FIG. 6 has a structure in which the fuses 24 are arranged horizontally with respect to the mounting surface.
The mounting area required for mounting on 25 is large, and
Since the number of poles of 22 is fixed in advance, it is difficult to develop a desired number of poles.

Therefore, the present invention occupies a small area during mounting,
An object of the present invention is to provide a two-piece terminal block connector that can be easily developed to a required number of poles.

[Means for Solving the Problems] To achieve the above object, a two-piece terminal block connector according to the invention of claim 1 includes a fuse holder housing portion formed at a central position on a straight line and a fuse holder housing portion on a straight line. A wire connection part storage part and a receptacle-side contact part storage part respectively formed so as to be connected to both sides of the fuse holder storage part, and a fuse opening that opens outward in a direction perpendicular to the straight line direction is formed in the fuse holder storage part. A housing in which a wire-connection-side opening and a contact-side opening that open outward in a straight line direction are formed in the wire connection-portion storage portion and the receptacle-side contact storage portion; and a straight line direction in the fuse holder storage portion. And the terminals at both ends of the cylindrical fuse inserted through the fuse opening are detachably supported. A pair of fuse holders that are electrically connected to each other, and a wire that is connected to the fuse holder on the wire connection portion housing portion side of the pair of fuse holders, extends into the wire connection portion storage portion, and is exposed at the connection portion side opening. A wire connection portion having an electrode for connection; and a fuse holder on a receptacle-side contact storage portion of the pair of fuse holders, which extends into the receptacle-side contact storage portion and passes through the contact-end opening. It is configured to include a plug-side contact to be inserted and a receptacle-side contact that can be brought into and out of contact with.

The two-piece terminal block connector according to the second aspect of the present invention includes a fuse holder accommodating portion formed at a central position on a straight line and a wire connection portion accommodating respectively formed on both sides of the fuse holder accommodating portion on a straight line. A fuse opening that opens outward in a direction perpendicular to the straight line direction in the fuse holder housing, and a wire connection unit housing and a receptacle side contact housing. A first housing formed with a connection side opening and a contact side opening which are opened outward in a straight line, a fuse holder housing formed in a central position on the straight line, and a fuse on the straight line It has a wire connection part storage part and a receptacle-side contact storage part which are respectively connected to both sides of the holder storage part. A fuse opening is formed in the fuse holder storage portion, which opens outward in a direction perpendicular to the straight line direction, and opens outward in the straight line direction in the wire connection portion storage portion and the receptacle-side contact storage portion. A connection portion side opening portion and a contact side opening portion are formed, and a fitting opposite to a surface opposite to a surface on which the fuse opening portion is formed can be fitted to cover the fuse opening portion of the first housing; A second housing having a convex portion; and a cylindrical fuse fixed to the fuse holder accommodating portions of the first and second housings at intervals in a straight line direction and inserted through the fuse opening. A pair of fuse holders for detachably supporting and electrically connecting terminal portions at both ends of the first and second housings; and an electric wire of the pair of fuse holders in the first and second housings. A wire connection portion connected to the wire holder storage portion side fuse holder and extending into the wire connection portion storage portion and having a wire connection electrode exposed at the connection portion side opening; and a pair of first and second housings. A receptacle that is connected to the fuse holder on the receptacle-side contact storage portion side of the fuse holder and extends into the receptacle-side contact storage portion, and is capable of contacting and separating with the plug-side contact inserted through the contact-side opening. And a side contact.

According to the present invention, the housing has a fuse holder storage portion at a central position on a straight line, and has a wire connection portion storage portion and a receptacle contact storage portion on both sides of the fuse holder storage portion. Since it is configured to be able to vertically contact and separate from the child, the occupied area during mounting can be reduced.

Furthermore, the cylindrical fuse can be independently attached to and detached from the fuse holder through the fuse opening, and the electric wire can be independently connected to and detached from the electric wire connection portion, and the plug can be inserted and removed. The receptacle-side contact can be independently moved toward and away from the side contact. That is, the operation of directly removing the fuse, the operation of connecting the electric wire, and the operation of connecting to the plug can be performed independently, and each operation can be performed efficiently without being disturbed by other operations.

Further, according to the present invention, since the fitting projection of the second housing is configured to be fitted into the opening of the fuse holder storage portion of the first housing, the required number of poles can be easily adjusted. Can be expanded.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings. 1 and 2 are cross-sectional views showing a first embodiment of the present invention. FIG. 1 shows a combination of two (first and second) receptacles 1 and one plug 15. FIG. 2 is a view showing a state in which two receptacles 1 are disassembled.

The receptacle 1 includes a housing 2, a fuse holder 3, a cylindrical fuse 4, and a receptacle-side contact 5.
And a fuse holder cover 6. The housing 2 has a fuse holder storage section 2a at a central position on a straight line, an electric wire connection section storage section 2b and a receptacle side contact storage section 2c on both sides thereof, and externally provided in each of the storage sections 2a to 2c. The fuse 4 has an opening (a fuse opening, a connection-side opening, and a contact-side opening) for electrically connecting a not-shown electric wire and a plug contact 17 described later, respectively. .

The fuse holder 3 is housed and fixed in the fuse holder accommodating portion 2a of the housing 2 with an interval therebetween, supports the terminal portions 4a at both ends of the cylindrical fuse 4, and
This is electrically connected.

The electric wire connection section 7 is electrically connected to one side of the fuse holder 4a, and includes an electrode 7a and a screw 7b for connecting the electric wire via a washer 7c.

Such a configuration is provided by the first and second receptacles 1.
Are different from the first (left side in the figure) receptacle 1 and the second (right side in the figure) receptacle 1 in the following points. That is, the second receptacle 1
The housing 2 of the first receptacle 1 has a fitting projection 2d that can be fitted into the opening (fuse opening) of the fuse holder accommodating portion 2a of the housing 2 of the first receptacle 1.
The rear side of the housing 2 of the receptacle 1 is a flat surface except for the receptacle-side contact housing 2c.

Thus, the plug 10 is composed of the insulator 11 and the plug contact 12
The receptacle-side contact storage section 2c of the fuse holder 2 includes a right-angle plug-side contact 12 that can be electrically connected to and separated from the receptacle-side contact 5.

According to the embodiment described above, the housing 2 has the fuse holder storage portion 2a at the center position on a straight line, and has the wire connection portion storage portion 2b and the receptacle side contact storage portion 2c on both sides thereof. Since the contact portion of the plug-side contact 12 can be vertically separated from the contact portion, the occupied area at the time of mounting can be reduced as compared with the conventional example of FIG.

Further, according to the present invention, since the fitting projection 2d of the second housing 2 can be fitted into the opening of the fuse holder storage portion 2a of the first housing 2, the required pole By expanding the number of the receptacles 1 having the same configuration as the second receptacle 1 in correspondence with the number, the deployment can be easily performed.

Further, the two-piece structure of the plug 10 and the receptacle 1 facilitates connection between the mounting board and the wire connection portion, and enables high-density mounting, which is particularly effective for those having a large number of poles.

Further, the first and second receptacles 1 can be separated, the maintenance of the fuses 4 can be performed from the opening of the fuse holder storage section 2a of the first receptacle 1, and the fuse holders of the second receptacle 1 can be maintained. By removing the cover 6, maintenance of the fuse 4 can be performed from the opening of the fuse holder storage section 2a of the second receptacle 1.

Further, since the fuse 4 is stored inside the housing 2, the fuse 4 can be protected, and there is no need to use a special fuse 4.

The present invention is not limited to the above-described embodiment, and can be modified as follows. FIG. 3 is a view showing a disassembled state in a case where three of the above-described receptacles 1 are combined, and the same operation can be performed even when there are four or more receptacles 1. FIG. 4 is a view showing only the above-described first receptacle 1, and FIG. 5 is a view in which a plurality of the receptacles 1 of FIG. 4 are arranged and integrally formed. In each case, an effect similar to that of the above-described embodiment can be obtained.

[Effects of the Invention] According to the present invention, the housing has a fuse holder storage portion at a central position on a straight line, and has a wire connection storage portion and a receptacle-side contact storage portion on both sides thereof, respectively. Since it is configured so as to be able to vertically contact and separate from the contact, the occupied area at the time of mounting can be reduced, and the fitting of the second housing into the opening of the fuse holder accommodating portion of the first housing. Since the joint projection is configured to be fittable, it is possible to provide a two-piece terminal block connector that can be easily developed to the required number of poles.

Furthermore, the cylindrical fuse can be independently attached to and detached from the fuse holder through the fuse opening, and the electric wire can be independently connected to and detached from the electric wire connection portion, and the plug can be inserted and removed. The receptacle-side contact can be independently moved toward and away from the side contact. That is, the work of attaching and detaching the fuse, the work of connecting the electric wire, and the work of connecting to the plug can be performed independently, and each work can be performed efficiently without being disturbed by other work.

[Brief description of the drawings]

1 and 2 are cross-sectional views showing a first embodiment of a two-piece terminal block connector according to the present invention. FIGS. 3 to 5 are cross-sectional views for explaining a modification of the present invention. FIG. 3 is a cross-sectional view for explaining a problem of a conventional terminal block with a built-in fuse. 1. Receptacle, 2 ... Housing, 2a ... Fuse holder storage section, 2b ... Wire connection section storage section, 2c ... Receptacle side contact storage section, 2d ... Fitting projection, 3 ...
Fuse holder, 4 fuses, 5 contacts on the receptacle side, 6 fuse holder cover, 7 wires connection part, 10 plugs, 11 insulators, 12 contacts on the plug side.

Claims (2)

(57) [Claims] 1. A fuse holder accommodating portion formed at a central position on a straight line, and a wire connection portion accommodating portion and a receptacle-side contact accommodating portion formed respectively on both sides of the fuse holder accommodating portion on the straight line. A fuse opening that opens outward in a direction perpendicular to the straight line direction in the fuse holder housing portion; and the straight line direction is formed in the wire connection portion housing portion and the receptacle-side contactor housing portion. A housing in which a connection-portion-side opening and a contact-portion-side opening that open outward are fixed to the fuse holder storage portion with an interval in the straight line direction, and the fuse opening is A pair of fuse holders that detachably support the terminals at both ends of the cylindrical fuse inserted through and electrically connect the terminals; An electric wire connection having an electrode for electric wire connection connected to a fuse holder on the electric wire connection portion housing portion side of the pair of fuse holders and extending into the electric wire connection portion storage portion, and exposed at the connection portion side opening. And a plug-side contact that is connected to the fuse holder on the receptacle-side contact storage portion side of the pair of fuse holders, extends into the receptacle-side contact storage portion, and is inserted through the contact-side opening. A two-piece terminal block connector comprising: a connector; 2. A fuse holder accommodating portion formed at a central position on a straight line, and a wire connection portion accommodating portion and a receptacle contact contact accommodating portion formed respectively on both sides of the fuse holder accommodating portion on the straight line. An opening for fuse opening outward in a direction perpendicular to the straight line direction is formed in the fuse holder housing portion, and the straight line method is formed in the wire connection portion housing portion and the receptacle side contactor housing portion. A first portion having a connection portion side opening and a contact side opening which are open to the outside of the device.
And a fuse holder accommodating portion formed at a central position on a straight line, and a wire connection portion accommodating portion and a receptacle contact contact accommodating portion formed respectively on both sides of the fuse holder accommodating portion on the straight line. An opening for fuse opening outward in a direction perpendicular to the direction of the straight line is formed in the fuse holder storage portion, and the wire connection portion storage portion and the receptacle-side contact storage portion are aligned in the straight direction. A connection-side opening and a contact-side opening that open outward are formed, and a surface opposite to the surface on which the fuse opening is formed covers the fuse opening of the first housing. A second housing having a fitting protrusion that can be fitted; and a front of the fuse holder accommodating portion in the first and second housings. A pair of fuse holders fixed at intervals in a straight line direction and detachably supporting terminal terminals at both ends of a cylindrical fuse inserted through the fuse opening and electrically connecting the terminals; An electric wire connection that is connected to a fuse holder on the electric wire connection portion housing portion side of the pair of fuse holders in the first and second housings and extends into the electric wire connection portion storage portion, respectively, and is exposed at the connection portion side opening. A wire connection portion having an electrode for use in connection with a fuse holder on the receptacle side contact storage portion side of the pair of fuse holders in the first and second housings, respectively, inside the receptacle side contact storage portion. And a receptacle side contact that is detachable from a plug side contact inserted through the contact side opening. Two-piece terminal block connector comprising a child.